/**
 * easyloader - jQuery EasyUI
 *
 * Copyright (c) 2009-2013 www.jeasyui.com. All rights reserved.
 *
 * Licensed under the GPL or commercial licenses
 * To use it on other terms please contact us: info@jeasyui.com
 * http://www.gnu.org/licenses/gpl.txt
 * http://www.jeasyui.com/license_commercial.php
 *
 */
(function () {
    var modules = {
        draggable: {
            js: 'jquery.draggable.js'
        },
        droppable: {
            js: 'jquery.droppable.js'
        },
        resizable: {
            js: 'jquery.resizable.js'
        },
        linkbutton: {
            js: 'jquery.linkbutton.js',
            css: 'linkbutton.css'
        },
        progressbar: {
            js: 'jquery.progressbar.js',
            css: 'progressbar.css'
        },
        tooltip: {
            js: 'jquery.tooltip.js',
            css: 'tooltip.css'
        },
        pagination: {
            js: 'jquery.pagination.js',
            css: 'pagination.css',
            dependencies: ['linkbutton']
        },
        datagrid: {
            js: 'jquery.datagrid.js',
            css: 'datagrid.css',
            dependencies: ['panel', 'resizable', 'linkbutton', 'pagination']
        },
        treegrid: {
            js: 'jquery.treegrid.js',
            css: 'tree.css',
            dependencies: ['datagrid']
        },
        propertygrid: {
            js: 'jquery.propertygrid.js',
            css: 'propertygrid.css',
            dependencies: ['datagrid']
        },
        panel: {
            js: 'jquery.panel.js',
            css: 'panel.css'
        },
        window: {
            js: 'jquery.window.js',
            css: 'window.css',
            dependencies: ['resizable', 'draggable', 'panel']
        },
        dialog: {
            js: 'jquery.dialog.js',
            css: 'dialog.css',
            dependencies: ['linkbutton', 'window']
        },
        messager: {
            js: 'jquery.messager.js',
            css: 'messager.css',
            dependencies: ['linkbutton', 'window', 'progressbar']
        },
        layout: {
            js: 'jquery.layout.js',
            css: 'layout.css',
            dependencies: ['resizable', 'panel']
        },
        form: {
            js: 'jquery.form.js'
        },
        menu: {
            js: 'jquery.menu.js',
            css: 'menu.css'
        },
        tabs: {
            js: 'jquery.tabs.js',
            css: 'tabs.css',
            dependencies: ['panel', 'linkbutton']
        },
        splitbutton: {
            js: 'jquery.splitbutton.js',
            css: 'splitbutton.css',
            dependencies: ['linkbutton', 'menu']
        },
        menubutton: {
            js: 'jquery.menubutton.js',
            css: 'menubutton.css',
            dependencies: ['linkbutton', 'menu']
        },
        accordion: {
            js: 'jquery.accordion.js',
            css: 'accordion.css',
            dependencies: ['panel']
        },
        calendar: {
            js: 'jquery.calendar.js',
            css: 'calendar.css'
        },
        combo: {
            js: 'jquery.combo.js',
            css: 'combo.css',
            dependencies: ['panel', 'validatebox']
        },
        combobox: {
            js: 'jquery.combobox.js',
            css: 'combobox.css',
            dependencies: ['combo']
        },
        combotree: {
            js: 'jquery.combotree.js',
            dependencies: ['combo', 'tree']
        },
        combogrid: {
            js: 'jquery.combogrid.js',
            dependencies: ['combo', 'datagrid']
        },
        validatebox: {
            js: 'jquery.validatebox.js',
            css: 'validatebox.css',
            dependencies: ['tooltip']
        },
        numberbox: {
            js: 'jquery.numberbox.js',
            dependencies: ['validatebox']
        },
        searchbox: {
            js: 'jquery.searchbox.js',
            css: 'searchbox.css',
            dependencies: ['menubutton']
        },
        spinner: {
            js: 'jquery.spinner.js',
            css: 'spinner.css',
            dependencies: ['validatebox']
        },
        numberspinner: {
            js: 'jquery.numberspinner.js',
            dependencies: ['spinner', 'numberbox']
        },
        timespinner: {
            js: 'jquery.timespinner.js',
            dependencies: ['spinner']
        },
        tree: {
            js: 'jquery.tree.js',
            css: 'tree.css',
            dependencies: ['draggable', 'droppable']
        },
        datebox: {
            js: 'jquery.datebox.js',
            css: 'datebox.css',
            dependencies: ['calendar', 'combo']
        },
        datetimebox: {
            js: 'jquery.datetimebox.js',
            dependencies: ['datebox', 'timespinner']
        },
        slider: {
            js: 'jquery.slider.js',
            dependencies: ['draggable']
        },
        parser: {
            js: 'jquery.parser.js'
        }
    };

    var locales = {
        'af': 'easyui-lang-af.js',
        'ar': 'easyui-lang-ar.js',
        'bg': 'easyui-lang-bg.js',
        'ca': 'easyui-lang-ca.js',
        'cs': 'easyui-lang-cs.js',
        'cz': 'easyui-lang-cz.js',
        'da': 'easyui-lang-da.js',
        'de': 'easyui-lang-de.js',
        'el': 'easyui-lang-el.js',
        'en': 'easyui-lang-en.js',
        'es': 'easyui-lang-es.js',
        'fr': 'easyui-lang-fr.js',
        'it': 'easyui-lang-it.js',
        'jp': 'easyui-lang-jp.js',
        'nl': 'easyui-lang-nl.js',
        'pl': 'easyui-lang-pl.js',
        'pt_BR': 'easyui-lang-pt_BR.js',
        'ru': 'easyui-lang-ru.js',
        'sv_SE': 'easyui-lang-sv_SE.js',
        'tr': 'easyui-lang-tr.js',
        'zh_CN': 'easyui-lang-zh_CN.js',
        'zh_TW': 'easyui-lang-zh_TW.js'
    };

    var queues = {};

    function loadJs(url, callback) {
        var done = false;
        var script = document.createElement('script');
        script.type = 'text/javascript';
        script.language = 'javascript';
        script.src = url;
        script.onload = script.onreadystatechange = function () {
            if (!done && (!script.readyState || script.readyState == 'loaded' || script.readyState == 'complete')) {
                done = true;
                script.onload = script.onreadystatechange = null;
                if (callback) {
                    callback.call(script);
                }
            }
        }
        document.getElementsByTagName("head")[0].appendChild(script);
    }

    function runJs(url, callback) {
        loadJs(url, function () {
            document.getElementsByTagName("head")[0].removeChild(this);
            if (callback) {
                callback();
            }
        });
    }

    function loadCss(url, callback) {
        var link = document.createElement('link');
        link.rel = 'stylesheet';
        link.type = 'text/css';
        link.media = 'screen';
        link.href = url;
        document.getElementsByTagName('head')[0].appendChild(link);
        if (callback) {
            callback.call(link);
        }
    }

    function loadSingle(name, callback) {
        queues[name] = 'loading';

        var module = modules[name];
        var jsStatus = 'loading';
        var cssStatus = (easyloader.css && module['css']) ? 'loading' : 'loaded';

        if (easyloader.css && module['css']) {
            if (/^http/i.test(module['css'])) {
                var url = module['css'];
            } else {
                var url = easyloader.base + 'themes/' + easyloader.theme + '/' + module['css'];
            }
            loadCss(url, function () {
                cssStatus = 'loaded';
                if (jsStatus == 'loaded' && cssStatus == 'loaded') {
                    finish();
                }
            });
        }

        if (/^http/i.test(module['js'])) {
            var url = module['js'];
        } else {
            var url = easyloader.base + 'plugins/' + module['js'];
        }
        loadJs(url, function () {
            jsStatus = 'loaded';
            if (jsStatus == 'loaded' && cssStatus == 'loaded') {
                finish();
            }
        });

        function finish() {
            queues[name] = 'loaded';
            easyloader.onProgress(name);
            if (callback) {
                callback();
            }
        }
    }

    function loadModule(name, callback) {
        var mm = [];
        var doLoad = false;

        if (typeof name == 'string') {
            add(name);
        } else {
            for (var i = 0; i < name.length; i++) {
                add(name[i]);
            }
        }

        function add(name) {
            if (!modules[name]) return;
            var d = modules[name]['dependencies'];
            if (d) {
                for (var i = 0; i < d.length; i++) {
                    add(d[i]);
                }
            }
            mm.push(name);
        }

        function finish() {
            if (callback) {
                callback();
            }
            easyloader.onLoad(name);
        }

        var time = 0;

        function loadMm() {
            if (mm.length) {
                var m = mm[0];	// the first module
                if (!queues[m]) {
                    doLoad = true;
                    loadSingle(m, function () {
                        mm.shift();
                        loadMm();
                    });
                } else if (queues[m] == 'loaded') {
                    mm.shift();
                    loadMm();
                } else {
                    if (time < easyloader.timeout) {
                        time += 10;
                        setTimeout(arguments.callee, 10);
                    }
                }
            } else {
                if (easyloader.locale && doLoad == true && locales[easyloader.locale]) {
                    var url = easyloader.base + 'locale/' + locales[easyloader.locale];
                    runJs(url, function () {
                        finish();
                    });
                } else {
                    finish();
                }
            }
        }

        loadMm();
    }

    easyloader = {
        modules: modules,
        locales: locales,

        base: '.',
        theme: 'default',
        css: true,
        locale: null,
        timeout: 2000,

        load: function (name, callback) {
            if (/\.css$/i.test(name)) {
                if (/^http/i.test(name)) {
                    loadCss(name, callback);
                } else {
                    loadCss(easyloader.base + name, callback);
                }
            } else if (/\.js$/i.test(name)) {
                if (/^http/i.test(name)) {
                    loadJs(name, callback);
                } else {
                    loadJs(easyloader.base + name, callback);
                }
            } else {
                loadModule(name, callback);
            }
        },

        onProgress: function (name) {
        },
        onLoad: function (name) {
        }
    };

    var scripts = document.getElementsByTagName('script');
    for (var i = 0; i < scripts.length; i++) {
        var src = scripts[i].src;
        if (!src) continue;
        var m = src.match(/easyloader\.js(\W|$)/i);
        if (m) {
            easyloader.base = src.substring(0, m.index);
        }
    }

    window.using = easyloader.load;

    if (window.jQuery) {
        jQuery(function () {
            easyloader.load('parser', function () {
                jQuery.parser.parse();
            });
        });
    }

})();
